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Class mapping – Dell PowerEdge VRTX User Manual

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Configuring DSCP Mapping Using CLI Commands

The following table summarizes the CLI commands for setting the fields in

the DSCP Mapping page.

The following is an example of the CLI commands:

Class Mapping

A Class Map defines a traffic flow associated with ACL(s). A MAC-based

ACL, IP-based ACL, and an IPv6-based ACL can be combined into a class

map. Class maps are configured to match packet criteria on a match-all or

match-any basis. They are matched to packets on a first-fit basis, meaning

that the action associated with the first-matched class map is the action

performed by the system. Packets that match the same class map belong to

the same flow.
There are two possible types of matching:

match-all — Traffic matches class map if it matches IP/IPV6 and MAC

ACLs

match-any — Traffic matches class map if it matches at least one of the

ACLs

If a more complex set of rules is needed, several class maps can be grouped

into a super-group called a policy (see "Defining Class Mapping Using CLI

Commands" on page 444).
To define a class map:

1 Click Quality of Service > QoS Advanced Mode > Class Mapping to

display the Class Mapping: Summary page.
The previously-defined class maps are displayed.

Table 19-12. DSCP Mapping CLI Commands

CLI Command

Description

qos map policed-dscp dscp-list

to dscp-mark-down

no qos map policed-dscp [dscp-

list]

Configures the policed-DSCP map for

remarking purposes.
Use the no form of this command to

restore the default configuration.

console(config)# qos map policed-dscp 3 to 43